PAM8620TR

Product Overview

Category

PAM8620TR belongs to the category of audio power amplifiers.

Use

It is primarily used for amplifying audio signals in various electronic devices such as portable speakers, home theater systems, and car audio systems.

Characteristics

• High efficiency: PAM8620TR offers high power efficiency, ensuring optimal utilization of energy.
• Compact size: The amplifier is designed to be compact, making it suitable for space-constrained applications.
• Low distortion: It provides low distortion output, resulting in high-quality audio reproduction.
• Wide voltage range: PAM8620TR operates within a wide voltage range, allowing flexibility in different power supply configurations.

Package

The PAM8620TR comes in a small outline package (SOP) with thermal pad, which aids in heat dissipation.

Essence

The essence of PAM8620TR lies in its ability to deliver high-quality audio amplification while maintaining efficiency and compactness.

Packaging/Quantity

The product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Power Supply Voltage Range: 6V - 15V
• Output Power: 10W per channel (8Ω load, THD+N = 10%)
• Efficiency: Up to 90%
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PAM8620TR has a total of 16 pins, which are assigned specific functions:

1. VDD: Power supply positive terminal
2. GND: Ground
3. SD: Shutdown control input
4. MUTE: Mute control input
5. INL: Left channel audio input
6. INR: Right channel audio input
7. VREF: Reference voltage output
8. PVDD: Power supply positive terminal for the power stage
9. PGND: Ground for the power stage
10. OUTL: Left channel audio output
11. OUTR: Right channel audio output
12. BST: Bootstrap capacitor connection
13. FB: Feedback pin
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Shutdown and mute control: PAM8620TR offers shutdown and mute functionality, allowing for power-saving and audio muting when required.
• Short-circuit protection: The amplifier is equipped with short-circuit protection to prevent damage to the device in case of a fault.
• Thermal protection: It incorporates thermal protection mechanisms to safeguard against overheating.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Compact size enables integration into space-limited designs.
• Low distortion ensures high-quality audio output.
• Wide voltage range allows for versatile power supply configurations.

Disadvantages

• Limited output power compared to higher wattage amplifiers.
• May require additional heat dissipation measures in demanding applications.

Working Principles

PAM8620TR operates on the principle of class-D amplification. It utilizes pulse width modulation (PWM) techniques to convert the incoming audio signal into a series of high-frequency pulses. These pulses are then amplified by the power stage and filtered to reconstruct the original audio waveform. The resulting amplified audio signal is then delivered to the connected speakers.

Detailed Application Field Plans

The PAM8620TR finds application in various electronic devices, including: 1. Portable Bluetooth speakers 2. Home theater systems 3. Car audio systems 4. Multimedia soundbars 5. Gaming consoles

Detailed and Complete Alternative Models

1. PAM8403: Similar to PAM8620TR, it is a compact audio power amplifier with a lower output power of 3W per channel.
2. TPA3116D2: A higher-powered alternative, offering up to 50W per channel output power.
3. LM386: A popular low-power audio amplifier suitable for small-scale applications.

These alternative models provide different power levels and features to cater to diverse requirements in the audio amplification domain.

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